A1.0 kg book is lifted 0.5 m above the table , but the table is 1.0 m above the floor , what would be the p. e of the book if the reference level where the floor ?

What is relative velocity? in which condition is relative velocity known by adding the velocity of the first body and that of the second body

The earth exerts a gravitational force of 500 n on amy. what is amy’s mass in kg?

A1-lb collar is attached to a spring and slides without friction along a circular rod in a vertical plane. the spring has an undeformed length of 5 in. and a constant k =25 lb/ft. knowing that the collar is released from being held at a determine, the speed of the collar and the normal force between the collar and the rod as the collar passes through b.